Abstract：
OBJECTIVE:We performed a systematic review to evaluate endovaginal cervical ultrasonography as a predictor of preterm delivery. STUDY DESIGN:Selection criteria were original published English-language reports of prospective studies including women at <37 weeks' gestation with intact amniotic membranes. Parameters and outcomes were cervical length or dilatation of the internal cervical os and preterm delivery. RESULTS:In 3 subgroups of studies including patients with preterm labor or low-risk, symptom-free patients with early (20-24 weeks) or late (27-32 weeks) ultrasonographic examination, optimal cutoff values for cervical lengths ranged between 18 and 30, 25 and 35, or 25 and 39 mm. At these cutoff values, sensitivity rates were between 68% and 100%, 33% and 54%, or 63% and 76%, and specificity rates were between 44% and 79%, 73% and 91%, or 59% and 69%, respectively. Sensitivity rates for dilatation of the internal cervical os were 70% to 100%, 16% to 25%, or 33%, and specificity rates were 54% to 75%, 95% to 99%, or 92%, respectively. CONCLUSION:In patients with symptoms of preterm labor, endovaginal cervical ultrasonography appears to be an effective predictor of preterm delivery.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Leitich H,Brunbauer M,Kaider A,Egarter C,Husslein Pdoi
10.1016/s0002-9378(99)70407-2subject
Has Abstractpub_date
1999-12-01 00:00:00pages
1465-72issue
6eissn
0002-9378issn
1097-6868pii
S0002-9378(99)70407-2journal_volume
181pub_type
杂志文章,评审abstract：:The overall recurrence rate in 166 patients treated with cryosurgery is 10.8%. Recurrent cervical intraepithelial neoplasia is much more common in patients with severe dysplasia. Failures are commonly due to one of four factors. First, cryosurgery is to be used only after adequate colposcopic assessment and a negative...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(16)32437-1
更新日期：1982-03-15 00:00:00
abstract：OBJECTIVE:We recently reported that nitric oxide was associated with increased mortality among pregnant rats with intrauterine infection. In our current study we investigated the expression of different isoforms of nitric oxide synthases and nitric oxide in the nonpregnant rat uterus with experimental intrauterine infe...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(99)70499-0
更新日期：1999-09-01 00:00:00
abstract：OBJECTIVE:The efficacy, safety, and antibiotic-related charges for once-daily gentamicin with twice-daily clindamycin were compared with those of thrice-daily dosing of these antibiotics. STUDY DESIGN:Patients with puerperal endometritis or with chorioamnionitis in labor assessed to be at risk for endometritis were ra...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/s0002-9378(97)70269-2
更新日期：1997-10-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to describe the natural history of pelvic organ prolapse after menopause. STUDY DESIGN:Over 2 to 8 years, participants in the estrogen plus progestin trial of the Women's Health Initiative at the University of California Davis had annual pelvic examinations, with an assessment o...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2003.07.017
更新日期：2004-01-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to determine whether a wet mount preparation of endocervical secretions from obstetric patients can accurately rule out the presence of gonococci and Chlamydia trachomatis. STUDY DESIGN:Gravid patients were screened for gonococci and C trachomatis with a deoxyribonucleic acid pr...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(99)70549-1
更新日期：1999-08-01 00:00:00
abstract：:Partial colpocleisis, in comparison with complete colpocleisis, offers several advantages. The most obvious advantage is the avoidance of recurrent prolapse in sexually nonactive, older patients. Historically, colpocleisis has been reported to produce stress incontinence, which may be avoided by partial colpocleisis. ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(86)90699-x
更新日期：1986-06-01 00:00:00
abstract：OBJECTIVE:We sought to develop a valid, reliable assessment of intraoperative judgment by residents during gynecologic surgery based on Script Concordance Theory. STUDY DESIGN:This was a multicenter prospective study involving 5 obstetrics and gynecology residency programs. Surgeons from each site generated case scena...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,多中心研究
doi：10.1016/j.ajog.2010.04.010
更新日期：2010-09-01 00:00:00
abstract：:The adenosine-3',5'-monophosphate (cAMP) level in human amnion has been measured in vitro during short-term incubations, with or without prostaglandin E1 (PGE1) or isoproterenol. Concentration-response and kinetic curves were obtained. Isoproterenol and PGE1 stimulated cAMP production by amnion in a time-dependent man...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(16)32592-3
更新日期：1981-09-15 00:00:00
abstract：:Total cesarean section rates and rates of various indications for primary cesarean section were reviewed for four yearly periods during the past decade. The time periods studied were chosen to follow the introduction of new obstetric practices and technologic advances in monitoring fetal condition. The total cesarean ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(79)90426-5
更新日期：1979-10-15 00:00:00
abstract：OBJECTIVE:Our purpose was to examine the potential teratogenicity of calcium channel blockers. STUDY DESIGN:Six teratogen information services prospectively collected and followed up 78 women with first-trimester exposure to calcium channel blockers. Pregnancy outcome was compared (by paired t text of chi2 analysis) w...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1016/s0002-9378(96)70307-1
更新日期：1996-03-01 00:00:00
abstract：:The term microinvasive carcinoma is inappropriate when applied to all vulvar cancers less than or equal to 5 mm thick because approximately 50% of vulvar carcinomas are no thicker than 5 mm and 20% of those superficial tumors metastasize to the lymph nodes. The significant predictors of groin node metastases in patien...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(87)90132-3
更新日期：1987-05-01 00:00:00
abstract：OBJECTIVE:Our objectives were to establish an outpatient program for uterine artery embolization of fibroids and to monitor the following: percentage of patients who required immediate hospitalization or admission within 2 weeks, outcomes in terms of the degree of ultrasound regression of the fibroids, patient satisfac...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2001.114863
更新日期：2001-06-01 00:00:00
abstract：BACKGROUND:Recommendations on preventing primary cesarean delivery removed the previously defined time limits for latent labor (defined as ending at 6 cm) and urged clinicians to avoid cesarean delivery for labor abnormalities in the latent phase. However, relatively little is known about the implications of labor curv...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2019.05.041
更新日期：2019-11-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to evaluate the accuracy of clinical measurement of cervical dilation with a position-tracking system during vaginal examination. STUDY DESIGN:This prospective study that was conducted in Poissy, France, Brooklyn, NY, and Haifa, Israel, included 333 measurements that were perfor...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2009.01.002
更新日期：2009-04-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to identify differences in antepartum uterine contraction frequency (UCF) in twin pregnancies with and without preterm labor (PTL). STUDY DESIGN:Twin gestations enrolled for outpatient surveillance with twice daily electronic uterine activity monitoring and telephonic nursing as...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2007.10.781
更新日期：2008-05-01 00:00:00
abstract：OBJECTIVE:The objective of the study was to compare 3 different approaches for increasing clients' understanding of contraceptive effectiveness. STUDY DESIGN:We randomized 900 reproductive-age women in India and Jamaica to 1 of 3 charts presenting pregnancy risk. RESULTS:The most important reason for choosing a contr...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.ajog.2005.12.053
更新日期：2006-07-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to determine the normal beta-human chorionic gonadotropin change within 24 hours after a medical abortion. Because a medical abortion creates a "miscarriage," these data can represent the serum beta-human chorionic gonadotropin changes that would occur with a complete spontaneous...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/s0002-9378(96)70463-5
更新日期：1996-02-01 00:00:00
abstract：OBJECTIVE:This retrospective study was conducted to determine whether predischarge survival and morbidity of very-low-birth weight infants varied according to the principal pregnancy complication that led to preterm delivery. STUDY DESIGN:The hospital records of 535 consecutive live-born singleton infants who weighed ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(93)90288-t
更新日期：1993-11-01 00:00:00
abstract：OBJECTIVE:The objective of the study was to determine the prevalence of postpartum impaired glucose regulation (IGR) and factors associated with glucose screening following gestational diabetes mellitus (GDM). STUDY DESIGN:This was a prospective cohort study of 707 women with GDM who delivered at the University Hospit...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2007.09.015
更新日期：2008-04-01 00:00:00
abstract：:Women with Stage I epithelial carcinoma of the ovary were initially treated by an extirpative operation and were subsequently randomized to either no further treatment, radiotherapy, or chemotherapy. Only two patients (6%) treated with chemotherapy developed recurrence, compared to five (17%) and seven (30%) patients ...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/0002-9378(80)90024-1
更新日期：1980-09-15 00:00:00
abstract：:The fetal-pelvic index is a recently described means of identifying the presence or absence of fetal-pelvic disproportion. In this follow-up study, the efficacy of the fetal-pelvic index was evaluated in 49 patients requiring labor induction and was compared with two other methods used to identify fetal-pelvic disprop...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(88)80021-8
更新日期：1988-09-01 00:00:00
abstract：:To test the hypothesis that prostaglandins mediate the high incidence of postoperative pain in patients undergoing mechanical tubal occlusion, we studied the effect of premedication with a prostaglandin synthetase inhibitor in patients having Falope ring sterilization. Fifty-two women were randomly divided into two gr...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/0002-9378(85)90006-7
更新日期：1985-01-15 00:00:00
abstract：:There is a general consensus that the cesarean delivery rate in the United States is too high, and that practice patterns of obstetricians are largely to blame for this situation. In reality, the US cesarean delivery rate is the result of 3 forces largely beyond the control of the practicing clinician: patient expecta...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2018.04.044
更新日期：2018-09-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to determine, with the use of a rat model, the expression of tumor necrosis factor (TNF)-alpha, its receptors, and TNF-alpha-converting enzyme in perinatal brain lesions of early premature neonates. STUDY DESIGN:Lipopolysaccharide (LPS) was injected intraperitoneally in pregnant rat...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2009.06.005
更新日期：2009-11-01 00:00:00
abstract：OBJECTIVES:Because dehydroepiandrosterone may protect against neoplasia, osteoporosis, and cardiac disease, we investigated the bioavailability of oral micronized dehydroepiandrosterone, anticipating its adjunctive use in postmenopausal steroid replacement. STUDY DESIGN:Eight postmenopausal women randomly received eit...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1992-04-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to analyze the obstetric and neonatal impact of an opioid detoxification program during pregnancy, as well as to examine variables associated with successful opioid detoxification. STUDY DESIGN:This is a retrospective cohort study of women electing inpatient detoxification and s...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2013.05.026
更新日期：2013-09-01 00:00:00
abstract：:Two patients who survived cardiorespiratory arrest occurring in association with amniotic fluid embolism syndrome were seen during the subsequent pregnancy. Both had uneventful pregnancies and delivered at term without complications. These are the only case reports of pregnancy after amniotic fluid embolism, and they ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(11)91442-2
更新日期：1992-08-01 00:00:00
abstract：:In 1970 Morgan described an operation designed to meet the problem created by scarring and fibrosis resulting from previous operative procedures to the urethra and bladder neck. In the method, a 2 cm wide polypropylene (Marlex) mesh is placed as a broad hammock to elevate and support the urethrovesical junction with l...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(79)90681-1
更新日期：1979-02-01 00:00:00
abstract：OBJECTIVES:Our purpose was to determine whether systemic hypotension induced by rapid withdrawal of fetal blood would induce periventricular leukomalacia in the brain of premature fetal sheep. STUDY DESIGN:At 113 days' gestation, systemic hypotension (mean blood pressure <30 mm Hg) was induced by withdrawing approxima...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(99)70519-3
更新日期：1999-09-01 00:00:00
abstract：:We used the minimal model technique to obtain concurrent measurements of whole-body insulin sensitivity and pancreatic B-cell responsiveness to glucose during the third trimester of pregnancy. Insulin sensitivity in normal pregnant women (n = 8) was reduced to only one third that of a group of nonpregnant women (n = 7...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(90)91306-w
更新日期：1990-04-01 00:00:00
